, the muslim fund mentionist ideals that the oldbrothertamerlaninculcatingbegan to take hold. when he came back, tamerlan, it is also interesting to note that's when he began putting his videos on youtube. that's where he began referencing these radical imams. that's where he began truly to get hard core in terms it of his ideology, his hatred of the west. his hatred of decadent

it might be israel. the fbi got a tip on this guy. that you are looking at rightnow.tamerlantsarnaevthat he was a radical and that he travels back to russia for six months he comes back here and the fbi says he is clean. obviously he wasn't.

government had asked the united states to investigate the deceasedbrother,tamerlantsarnaevback in 2001 and the fbi did, in fact, interview the family and him and look into his background. peter doocy is following that story in washington. what did the fbi do back then? >> heather, the fbi says they spoke to suspect number two, tamerlan tsarnaev two years ago at the request of a foreign government who thought he might have possible extremist ties. the fbi combed through databases looking at phone calls, internet activity, travel history, known associates. they also say they did interview tamerlan and some family members, although at this point we don't know which ones and after all that, they found nothing. at the beginning of 2011, he was clean. no evidence of terror activity, foreign or domestic. so case closed. although the fbi did tell this foreign government who reached out that if any further concerns came up, check back in and they would circle back with this amateur boxer in boston. but this foreign government never did check back in. although we have interesting information to

likely has a new resident.26-year-oldtamerlantsarnaevshot by police this morning in the suburb of boston. he and his 19-year-old brother dzhokhar were identified by the fbi yesterday as the prime suspects in the bombing last monday that killed three and injured 170. now, shortly after the fbi sent those pictures you just saw out to the world, the two men began a series of bizarre moves. here is the time line. at 10:20 last night. the two suspects were confronted by a massachusetts institute of technology police officer who was responding to a robbery call in cambridge. the suspects allegedly shot 26-year-old sean collier dead. soon after that, the brothers hijacked a mercedes suv but released the driver unharmed after stealing $800 from him. the victim told police the suspects were bragging about being bombers. around 11:00 p.m. last night, police spotted the stolen mercedes and a chase began ending in watertown, a suburb 8 miles from boston. the suspects and police exchanged more than 200 rounds of gunfire and the brothers also threw explosives at the cops. one officer, 33-yea

shooting back at the officers olderbrothertamerlanputshis cruiser in gear so it begins to roll down the street. as is he out there firpg officers empty the rounds. able to move in on him and capture him. >> bill: i understand they were in very close quarters and they shot tamerlan he was shot a number of times, right? >> yes, yes, yes. he was struck by bullets. it's unclear when he suffered the fatal injuries because as they are struggling with him. as they are trying to arrest him and handcuff him, he is resisting arrest, his brother shoots out with the suv. his brother got into the suv and drives into the scene and drives into the brother. >> runs him over? >> runs him over and carries him several feet with the car. >> and the police dove out of the way. one police officer was shot, right, in the shootout not only was tamerlan shot but a cop was shot as well, right? >> a transit police officer by the name of richard donahue was shot in the leg, suffered a very serious injury but is recovering thank god. >> so then the younger, the 19-year-old he disappears in the suv, he drives aw

department let all americans down by not flagging the slainterroriststamerlantsarnaev.when russian intelligence alerts american homeland security people about an individual, you mark that individual forever. the russians are busy. they don't have time for small ball. the fact that this guy was selected for scrutiny by russian intelligence is huge. and then he travels from the u.s.a. to russia, returning six months later and u.s. intelligence doesn't watch him? what a massive screw up. massive. in addition, the guy was posting jihad garbage on the internet. and, still, he was not being watched. we simply can't have it. that's a mistake that cost four people their lives and more than 200 others their health. we cannot afford mistakes like that. now, on the broader question, it's clear to any sane person that muslim jihadists are a threat to the world. yet, president obama will not say that. >> when a tragedy like this happens, with public safety at risk and the stakes so high, it's important that we do this right. that's why we have investigations. that's why we relentlessly gather t

an unpres -- unspecified group. the f.b.i. did a reviewoftamerlan's backgroundand talked to him and family members and didn't come up with terrorist act timpt. but let me explain why this saimportant now. the same year the russian government said what do you been this guy and extremist ties? we think he is a radical islamist. that is the same time this group in chechnya is declared a terrorist enity and the older brother creates a youtube site where he is posting jihadi literature and that seems to be a theme is the trip to rush quaand sort of radicalization process intensifying at that point, governor. >> catherine, do we have enough intelligence to follow the smaller groups we haven't about? >> two mains. there is it a lot of intelligence gathering by the community and the american public has to ask themselves whether they want the government more in our business to prevent every attack. there is it a certain amount of risk and i am not minimizing what happened in boston but there is it a certain amount of risk if we are going to maintain what the american culture and democrac